commit dc50ba7f9a6d9a920409892c7f30bce266067345
author Alex Deucher <alexander.deucher@amd.com> Wed Jun 26 00:33:35 2013 -0400
committer Alex Deucher <alexander.deucher@amd.com> Thu Jun 27 19:15:22 2013 -0400
tree 17e9dc618117ceacf39c2f2e29907792cdedc598
parent 66229b200598a3b66b839d1759ff3f5b17ac5639

drm/radeon/kms: add dpm support for evergreen (v4)

This adds dpm support for evergreen asics.  This includes:
- clockgating
- dynamic engine clock scaling
- dynamic memory clock scaling
- dynamic voltage scaling
- dynamic pcie gen1/gen2 switching (requires additional acpi support)

Set radeon.dpm=1 to enable.

v2: reduce stack usage, rename ulv struct
v3: fix thermal interrupt check notices by Jerome
v4: fix state enable

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/radeon/radeon.h

diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 7221ff4..5d4731b 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -2131,6 +2131,15 @@
 #define ASIC_IS_NODCE(rdev) ((rdev->family == CHIP_HAINAN))
 #define ASIC_IS_DCE8(rdev) ((rdev->family >= CHIP_BONAIRE))
 
+#define ASIC_IS_LOMBOK(rdev) ((rdev->ddev->pdev->device == 0x6849) || \
+			      (rdev->ddev->pdev->device == 0x6850) || \
+			      (rdev->ddev->pdev->device == 0x6858) || \
+			      (rdev->ddev->pdev->device == 0x6859) || \
+			      (rdev->ddev->pdev->device == 0x6840) || \
+			      (rdev->ddev->pdev->device == 0x6841) || \
+			      (rdev->ddev->pdev->device == 0x6842) || \
+			      (rdev->ddev->pdev->device == 0x6843))
+
 /*
  * BIOS helpers.
  */
@@ -2358,6 +2367,10 @@
 #if defined(CONFIG_ACPI)
 extern int radeon_acpi_init(struct radeon_device *rdev);
 extern void radeon_acpi_fini(struct radeon_device *rdev);
+extern bool radeon_acpi_is_pcie_performance_request_supported(struct radeon_device *rdev);
+extern int radeon_acpi_pcie_performance_request(struct radeon_device *rdev,
+						u8 ref_req, bool advertise);
+extern int radeon_acpi_pcie_notify_device_ready(struct radeon_device *rdev);
 #else
 static inline int radeon_acpi_init(struct radeon_device *rdev) { return 0; }
 static inline void radeon_acpi_fini(struct radeon_device *rdev) { }